[INFO] fetching crate elements-frequency 0.1.5...
[INFO] testing elements-frequency-0.1.5 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate elements-frequency 0.1.5 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate elements-frequency 0.1.5 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate elements-frequency 0.1.5
[INFO] finished tweaking crates.io crate elements-frequency 0.1.5
[INFO] tweaked toml for crates.io crate elements-frequency 0.1.5 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 677269e2226c1a5333d9b5182db151e1c60ebe8a56dd8944c6337b0644a88b06
[INFO] running `Command { std: "docker" "start" "-a" "677269e2226c1a5333d9b5182db151e1c60ebe8a56dd8944c6337b0644a88b06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "677269e2226c1a5333d9b5182db151e1c60ebe8a56dd8944c6337b0644a88b06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "677269e2226c1a5333d9b5182db151e1c60ebe8a56dd8944c6337b0644a88b06", kill_on_drop: false }`
[INFO] [stdout] 677269e2226c1a5333d9b5182db151e1c60ebe8a56dd8944c6337b0644a88b06
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2d5d386ad7caf6c7c0247525fa5f77a8089cca39d98a201bfa6e1893a895e623
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "2d5d386ad7caf6c7c0247525fa5f77a8089cca39d98a201bfa6e1893a895e623", kill_on_drop: false }`
[INFO] [stderr]    Compiling elements-frequency v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.25s
[INFO] running `Command { std: "docker" "inspect" "2d5d386ad7caf6c7c0247525fa5f77a8089cca39d98a201bfa6e1893a895e623", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d5d386ad7caf6c7c0247525fa5f77a8089cca39d98a201bfa6e1893a895e623", kill_on_drop: false }`
[INFO] [stdout] 2d5d386ad7caf6c7c0247525fa5f77a8089cca39d98a201bfa6e1893a895e623
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1a4fb38efb229f5539607dd98212ea2b351d9eb42fea8ea59e75c249f8660bb5
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "1a4fb38efb229f5539607dd98212ea2b351d9eb42fea8ea59e75c249f8660bb5", kill_on_drop: false }`
[INFO] [stderr]    Compiling elements-frequency v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.27s
[INFO] running `Command { std: "docker" "inspect" "1a4fb38efb229f5539607dd98212ea2b351d9eb42fea8ea59e75c249f8660bb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a4fb38efb229f5539607dd98212ea2b351d9eb42fea8ea59e75c249f8660bb5", kill_on_drop: false }`
[INFO] [stdout] 1a4fb38efb229f5539607dd98212ea2b351d9eb42fea8ea59e75c249f8660bb5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 506c1ca674e1a3eca52bc340d1af44f7656dc810a11065d9f671fd2a1b30198c
[INFO] running `Command { std: "docker" "start" "-a" "506c1ca674e1a3eca52bc340d1af44f7656dc810a11065d9f671fd2a1b30198c", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/elements_frequency-6765945f7bd11fab)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/integration_test.rs (/opt/rustwide/target/debug/deps/integration_test-e17b48b0502ad85e)
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test tests::char_1 ... ok
[INFO] [stdout] test tests::positive_int_1 ... ok
[INFO] [stdout] test tests::positive_int_2 ... ok
[INFO] [stdout] test tests::negative_int_2 ... ok
[INFO] [stdout] test tests::random_int_1 ... ok
[INFO] [stdout] test tests::slice_1 ... ok
[INFO] [stdout] test tests::random_int_2 ... ok
[INFO] [stdout] test tests::negative_int_1 ... ok
[INFO] [stdout] test tests::string_2 ... ok
[INFO] [stdout] test tests::string_1 ... ok
[INFO] [stdout] test tests::slice_2 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests elements-frequency
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - (line 11) ... FAILED
[INFO] [stdout] test src/interface.rs - interface::Elements::result (line 80) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 11) stdout ----
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/lib.rs:19:34
[INFO] [stdout]    |
[INFO] [stdout] 11 | let mut elements = Elements::new(&list);
[INFO] [stdout]    |                                  ^^^^^ expected struct `Vec`, found array `[&str; 5]`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected reference `&Vec<_>`
[INFO] [stdout]               found reference `&[&str; 5]`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 11)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 1 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.60s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "506c1ca674e1a3eca52bc340d1af44f7656dc810a11065d9f671fd2a1b30198c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "506c1ca674e1a3eca52bc340d1af44f7656dc810a11065d9f671fd2a1b30198c", kill_on_drop: false }`
[INFO] [stdout] 506c1ca674e1a3eca52bc340d1af44f7656dc810a11065d9f671fd2a1b30198c